Mild
Average highs are around 22°C, so days are mild rather than hot.
September verdict
Blumenau, Brazil in September
Weather score37Poor
Poor for holiday weather
Average highs are around 22°C, so days are mild rather than hot. Sunshine averages 3.3h per day, so this is not one of the brighter months. Rainfall averages 135mm, so some wet days are possible.
September weather
Monthly averages
Temp
22°C
Rain
135mm
Sun
3.3h
Sea
20°C
Weather score
37
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 135mm, so some wet days are possible.
Limited sun
Sunshine averages 3.3h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 20°C, so the water can feel cool.
Map
Weather map
Compare Blumenau, Brazil with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September22°C average high
September is on the cooler side of Blumenau's year, useful if you prefer less intense daytime heat.
Warmest monthsJanuary to March and December
This stretch sets the upper range for average daytime heat.
Rain
September135mm average rain
September sits near Blumenau's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsApril to August and November
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September3.3 hours average sun
September is one of Blumenau's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsJanuary to April and November to December
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September20°C average sea
September is below Blumenau's yearly sea-temperature average, so swimming can feel fresher.
Warmest seaJanuary to March and December
Sea temperatures are usually near 26°C in this stretch, so swimming comfort is at its strongest.
Weather score
September37 weather score
September is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsJanuary to April and November to December
These months have the strongest weather score in the monthly averages.